protected TLFileBase GetFile(TLInt dcId, TLInputFileLocationBase location, TLInt offset, TLInt limit, out TLRPCError er, out bool isCanceled)
{
var manualResetEvent = new ManualResetEvent(false);
TLFileBase result = null;
TLRPCError outError = null;
var outIsCanceled = false;
_mtProtoService.GetFileAsync(dcId, location, offset, limit,
file =>
{
result = file;
manualResetEvent.Set();
},
error =>
{
outError = error;
if (error.CodeEquals(ErrorCode.INTERNAL) ||
(error.CodeEquals(ErrorCode.BAD_REQUEST) && (error.TypeEquals(ErrorType.LOCATION_INVALID) || error.TypeEquals(ErrorType.VOLUME_LOC_NOT_FOUND))) ||
(error.CodeEquals(ErrorCode.NOT_FOUND) && error.Message != null && error.Message.ToString().StartsWith("Incorrect dhGen")))
{
outIsCanceled = true;
manualResetEvent.Set();
return;
}
int delay;
lock (_randomRoot)
{
delay = _random.Next(1000, 3000);
}
Execute.BeginOnThreadPool(TimeSpan.FromMilliseconds(delay), () => manualResetEvent.Set());
});
manualResetEvent.WaitOne();
er = outError;
isCanceled = outIsCanceled;
return(result);
}
protected TLFileBase GetCdnFile(TLFileCdnRedirect redirect, TLInt offset, TLInt limit, out TLCdnFileReuploadNeeded reuploadNeeded, out TLRPCError er, out bool isCanceled, out bool isTokenInvalid)
{
var manualResetEvent = new ManualResetEvent(false);
TLFileBase result = null;
TLCdnFileReuploadNeeded outReuploadNeeded = null;
TLRPCError outError = null;
var outIsCanceled = false;
var outIsTokenInvalid = false;
_mtProtoService.GetCdnFileAsync(redirect.DCId, redirect.FileToken, offset, limit,
cdnFileBase =>
{
var cdnFile = cdnFileBase as TLCdnFile;
if (cdnFile != null)
{
var iv = GetIV(redirect.EncryptionIV.Data, offset);
var counter = offset.Value / 16;
iv[15] = (byte)(counter & 0xFF);
iv[14] = (byte)((counter >> 8) & 0xFF);
iv[13] = (byte)((counter >> 16) & 0xFF);
iv[12] = (byte)((counter >> 24) & 0xFF);
var key = redirect.EncryptionKey.Data;
var ecount_buf = new byte[0];
var num = 0u;
var bytes = Utils.AES_ctr128_encrypt(cdnFile.Bytes.Data, key, ref iv, ref ecount_buf, ref num);
result = new TLFile {
Bytes = TLString.FromBigEndianData(bytes)
};
}
var cdnFileReuploadNeeded = cdnFileBase as TLCdnFileReuploadNeeded;
if (cdnFileReuploadNeeded != null)
{
outReuploadNeeded = cdnFileReuploadNeeded;
}
manualResetEvent.Set();
},
error =>
{
outError = error;
if (error.CodeEquals(ErrorCode.INTERNAL) ||
(error.CodeEquals(ErrorCode.BAD_REQUEST) && (error.TypeEquals(ErrorType.LOCATION_INVALID) || error.TypeEquals(ErrorType.VOLUME_LOC_NOT_FOUND))) ||
(error.CodeEquals(ErrorCode.NOT_FOUND) && error.Message != null && error.Message.ToString().StartsWith("Incorrect dhGen")))
{
outIsCanceled = true;
manualResetEvent.Set();
return;
}
if (error.CodeEquals(ErrorCode.BAD_REQUEST) && error.TypeEquals(ErrorType.FILE_TOKEN_INVALID))
{
outIsTokenInvalid = true;
manualResetEvent.Set();
return;
}
int delay;
lock (_randomRoot)
{
delay = _random.Next(1000, 3000);
}
Execute.BeginOnThreadPool(TimeSpan.FromMilliseconds(delay), () => manualResetEvent.Set());
});
manualResetEvent.WaitOne();
reuploadNeeded = outReuploadNeeded;
er = outError;
isCanceled = outIsCanceled;
isTokenInvalid = outIsTokenInvalid;
return(result);
}
